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The procedure used in the distribution of treatments in the experimental
site using appropriate randomization methods.

Experimental error - The difference among the experimental plot treated
alike.A measure of the variation, which exists among experimental units,
applied with the same treatment.
Experimental unit - The smallest amount of experimental material to which
different treatments could be assigned.

Fertility Gradient – The direction to which the soil varies its level of fertility.

Finite population/sample - Population or sample that constitute an exact or a
whole number.

Frequency distribution/table - A tabular arrangement of data by classes
together with the corresponding class frequency.

Grouped data - Data organized and summarized in the frequency distribution.

Hypothesis - Statement that is to be proven true. A conjuncture, an intelligent
guess, a tentative or provisional answer to an observed problem.

Independent Variable – A presumed cause of the change and provides
explanation to the dependent variable or observations.

Inductive statistics - The process of drawing important conclusions about the
population inferred from analysis of the sample.

Infinite population/sample - Population/sample which may consist of inexact
or a fractional number.

Lower limit - Is the smallest limit corresponding to the smallest value of the
class interval.

Mean – An average value equal to the sum of all observations involved divided
by their number.

Mean Square – The variance obtained by dividing the sum of squares by its
corresponding degrees of freedom.

Measurements - The procedure of collecting data, which can give, rise to
continuous data.

Null hypothesis - Statement regarding the population parameter formulated
for the sole purpose of being rejected.

Parameters - The observations that are used to describe population.

Population - The totality of all objects or observations under consideration.

Population frame - List of all elements in the population.